Recently, it was found that Liriomyza sativae is a serious threat to cowpeas, and farmers should pay attention to prevention and treatment.
Liriomyza is a pest of the family Diptera, Liriomyza, and it is difficult for humans to see adult worms with the naked eye, but it is harmful to cowpeas. The female adults stabbed the leaves to feed and lay eggs. The larvae invaded the leaves and petioles of the cowpea and caused the leaves to produce irregular snake-like white worms or white irregular stripes. This is what people often call "devil-shaped" shapes. The chlorophyll of cowpea leaves is destroyed, affecting photosynthesis, the affected plants are dwarfed, even withered, and the leaves fall off, turning the leaves green into white. In the early stage, the growth of cowpea seedlings was slow, and the flower buds could not be normally differentiated. In the middle and later stages, the cowpea fruits could be reduced and the yield could be reduced. In severe cases, cowpea plants could be killed.
In the period of leaf miner larvae, they were sprayed with beta-cypermethrin, avermectin, imidacloprid, kung fu emulsifiable concentrate, etc., sprayed once every 5 days, and each agent was used alternately.
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